Hippothoa

Hippothoa is a genus of bryozoans belonging to the family Hippothoidae.

Hippothoa

Alison M. Fortunato · CC0 · via Wikidata/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.

On record

Recorded, not inferred
Sits inside
HippothoidaePBDB
Diet
suspension feederPBDB, for Cheilostomata
Life habit
epifaunalPBDB, for Cheilostomata
Motility
stationary, attachedPBDB, for Cheilostomata
Vision
blindPBDB, for Gymnolaemata
Environment
marinePBDB, for Lophophorata

Time the record covers

At least 34 million years on record.

The record covers at least 34.6 Mya to 129 ka. No occurrence read is dated outside 36.7 Mya to 11.7 ka.

Eocene — about 1 of 15 occurrencesEoceneOligocene — about 0 of 15 occurrencesMiocene — about 2 of 15 occurrencesMiocenePliocene — about 6 of 15 occurrencesPleistocene — about 6 of 15 occurrences37–36 Mya — about 0.2 occurrences36–35 Mya — about 0.6 occurrences35–34 Mya — about 0.2 occurrences21–20 Mya — about 0.1 occurrences20–19 Mya — about 0.3 occurrences19–17 Mya — about 0.7 occurrences17–16 Mya — about 0.7 occurrences16–15 Mya — about 0.2 occurrences6.2–5.0 Mya — about 0.6 occurrences5.0–3.7 Mya — about 2 occurrences3.7–2.5 Mya — about 3 occurrences2.5–1.2 Mya — about 2 occurrences1.2–0 Mya — about 4 occurrences34.6 Mya129 ka37.4 Mya0 Mya

15 occurrences of Hippothoa on record, most of them in the Pliocene. The Paleobiology Database records this as a living group. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.

When

15 occurrences

These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.

Found in

6 formations

Polonez Cove — 62.25°S, 59.00°WMt Brown "E" Limestone — 43.02°S, 172.71°EOtotara Limestone — 45.07°S, 170.92°EPalos Verdes Sand — 33.60°N, 117.88°WSan Diego — 32.54°N, 117.11°WSanta Barbara — 34.40°N, 119.69°W

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The named rock units Hippothoa has been recovered from, largest first. Drawn where the rock is now, not where it formed. 9 occurrences have no formation on record, which is common for older literature.

Hippothoa and its relatives

Pliocene

Where Hippothoa and its relatives were recorded in the Pliocene.

Found in the same rock

771 taxa

The Paleobiology Database records 13 sites for Hippothoa, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.

This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.

Entered from

7 references

Each of the 15 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Hippothoa

Credit
Alison M. Fortunato
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Hippothoa was found in MorphoSource and Sketchfab.

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itHippothoidae through timeFormations of the PlioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Lamouroux 1821